. . _:vb50818524 . . _:vb50818524 . _:vb50818522 . _:vb50818523 . _:vb50818523 . "1998-02-10" . _:vb50818521 . _:vb50818522 . "XML 1.0 Recommendation" . _:vb50818524 . . _:vb50818521 . . _:vb50818523 "Michael Sperberg-McQueen" . _:vb50818521 "Tim Bray" . _:vb50818522 "Jean Paoli" .